In this section you will be tested on your ability to:
1.21 write word equations and balanced chemical equations to represent the reactions studied in this specification 1.22 use the state symbols (s),(l),(g) and (aq) in chemical equations to represent solids, liquids, gases and aqueous solutions respectively 1.23 understand how the formulae of simple compounds can be obtained experimentally, including metal oxides, water and salts containing water of crystallisation 1.24 calculate empirical and molecular formulae from experimental data 1.25 calculate reacting masses using experimental data and chemical equations 1.26 calculate percentage yield 1.27 carry out mole calculations using volumes and molar concentrations
Chemical formulae and chemical equations
In this section you will be tested on your ability to:
1.21 write word equations and balanced chemical equations to represent the reactions studied in this specification1.22 use the state symbols (s),(l),(g) and (aq) in chemical equations to represent solids, liquids, gases and aqueous solutions respectively
1.23 understand how the formulae of simple compounds can be obtained experimentally, including metal oxides, water and salts containing water of crystallisation
1.24 calculate empirical and molecular formulae from experimental data
1.25 calculate reacting masses using experimental data and chemical equations
1.26 calculate percentage yield
1.27 carry out mole calculations using volumes and molar concentrations
Section notes
Investigations
Resources
Textbook pages:
Tutorials on balancing equations
Balancing equationbalancing chemical equations
try this one
an easy balancing equations game
and another one
Worksheets
Animations
making a solution